Portable grist-mill.



P. MONDRY. I

PORTABLE GRIST MILL.

APPLICATION FILED APR. 3, 1912.

Patented Sept. 17, 1912.

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P. MONDRY.

PORTABLE GRIST MILL.

APPLICATION FILED APR. 3, 1912.

Patented Sept. 17, 1912.

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PORTABLE GRIST-MILL.

Specification of Letters Patent.

Application filed April 3, 1912. Serial No. 688,181.

To all whom it may concern:

Be it known that 1, PETER MONDRY, a subject of the Emperor of Austria-Hungary, residing at Amsterdam, county of Montgomery, and State of New York, have in vented certain new and useful Improvements in Portable Grist-Mills, of which the following is a specification.

The invention relates to such improvements and consists of the novel construction and combination of parts hereinafter described and subsequently claimed.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, which form a part of this specification.

Similar characters refer to similar parts in the several figures therein.

Figure 1 of the drawings is a vertical. longitudinal section of my improved portable gristmill. Fig. 2 is a vertical cross-section of the same taken on the broken line 2-2 in Fig. 1. Fig. 3 is a top plan view of the mill. Fig. 4 is a top plan view of the front portion of the mill with the screens removed showing a plan view of two of the deliverychutes.

The principal object of the invention is to provide in conveniently portable form a mill for grinding and separating various kinds of grain.

Other objects will appear in connection with the follbwing description.

Referring to the drawings wherein the invention is shown in preferred form, 1, represents the frame of the machine, upon which is supported a stationary millstone, 2, adapted to cooperate with a rotatory millstone, 3, for grinding the grain. The rotatory stone, 3, is adapted to be rotated by means of a shaft, 4, having on its lower end a beveled pinion, 5, in engagement with a beveled gear, 6, fixed upon a horizontal shaft, 7, rotatively, mounted in bearings upon the frame of the machine. Power may be transmitted to the shaft, 7, in any known manner, as by means of a hand-wheel 8. The millstones are contained within a housing, 9, from which the ground grain is delivered through an outlet-chute 10.

The grain is fed to the stones through an aperture, 11, in the top of the housing, 9, from a hopper, 12, having a bottom-outlet, 13, controlled by a hinged valve, 14, which may be supported in a more or less open position by means of a cord, 15, attached to uct is delivered by the chute, 10, upon a screen, 18, having an upper. meshed diaphragm, 19, and a lower meshed diaphragm, 20, the lower diaphragm being of a finer 'mesh than the upper diaphragm, and extending only part way from rear to front of the screen-frame. The frame of the screen, 18, is connected by a strap, 21, with a cam, 22, fixed upon the shaft, 4, which cam has one or more cam-projections adapted to impart a to-and-fro movement to the screen-frame. The screen is adjustably supported by means of a spring-plate, 23, having a plurality of apertures, 50, severally adapted to receive a pin, 51, projecting from the frame of the machine at a point whereat the spring, 23, bears thereupon. The tension of the spring, 23, can be regulated by means of a cord, 24, which passes over a cross-bar, 25, and is connected with and adapted to be wound upon a peg, 26, similar to the peg 16. Attached to the screen-frame beneath the lower screen-diaphragm, 20, is a chute, 28, which may be made of canvas or other suitable material adapted to deliver the finer ground products into the receiving-chamber 29.

The ground product which passes through the upper screen-diphragm, 19, and fails to pass through the lower screen-diaphragm, 20, will fall into a chute, 30, formed in part by the casing, 31, of a rotary fan, 32, fixed upon a rotatory shaft, 33, driven from the shaft, 7, by means of a belt, 34, and suitable pulleys on the respective shafts. The ground product which fails to pass through either of the screen-diaphragms, 19 and 20, will fall into a chute, 35, which is separated from the chute, 30, by the crosspartition 27. One side-wall, 36, of the chute, 30, and the opposite side-wall, 37, of the chute, 35, incline downwardly and inwardly to bottom outlet-openings, 38 and 39, respectively, on opposite sides of a central partition, 40, the finer ground product thus passing from the chute, 36, through the bottom-outlet, 38, into a delivery-chamber, 41,

and the coarser ground product passing from the chute, 35, through the bottom-outlet, 39, into a delivery-chamber 42. The bottoms of the delivery chambers, 41 and 42,

Patented Sept. 17, 1912.

from the delivery-chamber, 29,- through an opening 47. The chutes, and 35, having the common wall formed by the cross-partition, 27, have their bottom-outlets, 88 and 39,.

12. close proximity to one another, and sepa' rated from one another lengthwise of the machine only by the thickness of saidpartition 27. The ground product which falls through the bottom openings, 38 and 39, thus falls in approximately the same vertical plane transversely of the blast from the fan. f What I claim as new and desire to secure 7 v by Letters Patent is 1. In a machine of the class described and 1 1n combmation, screen mechanlsm having screens of different degrees of fineness; j

means for agitating said screen-mechanism; a fan; a fan-casing provided wlth an outlet for the blast from the fan; delivery-chutes;

arranged to receive the product in different degrees of fineness from successive portions of said screen-mechanlsm, one of said dehv- 1 cry-chutes being formed 1n part by sald fancasing, said delivery-chutes being provided with bottom-outlets in approximately the:

same vertical plane transversely of and adjacent to the outlet for the blast from said Iii/I1.

2. In a fnachine of the class described, and in combination, screen-mechanism; and a plurality of delivery-chutes adapted to receive the product in different degrees of fineness from successive portions of said screenmechanism, said chutes being provided with bottom-outlets in approximately the same transverse vertical plane.

3. In a machine of the class described, and in combination, screen-mechanism; a pair of delivery-chutes, formed in part by a transverse partition, adapted to receive the product in difi'erent degrees of fineness from successive portions of said screen-mechanism; and a pair of delivery-chambers separated by a longitudinal partition below said transverse partition, one of said chutes having its walls downwardly convergent toward said transverse partition, and being provided with a bottom-outlet on one side of said longitudinal partition, and the other of said chutes having its walls downwardly convergent toward said transverse partition, and being provided with a bottom-outlet on the opposite side of said longitudinal partition, said bottom-outlets communicating with the respective delivery-chambers.

In testimony whereof, I have hereunto set my hand this 25th day of March, 1912.

7 PETER MONDRY. i/Vitnessesz J. E. DONSBAOH, R. A. Lnnoc.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G. v 

